1. Sen AK: Inequality reexamined. Oxford: Clarendon; 1992.
2. Zhou XN: Prioritizing Research for "One health-One world". Inf Dis Poverty. 2012, 1 (1): 1
3. WHO: Social Determinants of Health. 21 September, 2012.
http://www.who.int/social_determinants/en/
.
4. Lancet T: Universal Health Coverage, Themed issue. 2012,
http://www.thelancet.com/themed-universal-health-coverage
(accessed September 7, 2012.
5. WHO: WHO Health Systems Strategy. 2012,
http://www.who.int/healthsystems/strategy/en/
(accessed Sept 21, 2012).